acetic acid yield 中文意思是什麼

acetic acid yield 解釋
醋酸得率
  • acetic : adj. 醋的；酸的。
  • acid : adj. 1. 酸味的。2. 【化學】酸的，酸性的。3. 〈比喻〉尖酸刻薄的，易怒的。n. 1. 酸味物。2. 【化學】酸。adv. -ly ,-ness n.
  • yield : vt 1 生出，產生（作物、報酬、利益等）。2 給與，讓與；讓渡；放棄（權利、地位等）；交出。3 承認。4 ...
  1. Gene deletion to decrease acetic acid yield of saccharomyces cerevisiaes

    6基因降低啤酒酵母產乙酸量
  2. Studied the liquid - phase synthesis of butyl acetate from n - butyl alcohol and acetic acid using the supported heteropoly blue as catalyst. examed several factors imposing on esterification. the results revealed : using this catalyst, the reactions conversion percentage reaches nearly 100 %, product yield is 98. 9 %, selectivity is 98. 9 %. reusing it 10 times, the efficiency is still well. in addition, using this catalyst, the reactions temperature is mild, the reaction time is short and the equipment hasnt any erosion. furthermore, there is no “ threewastesdischarge

    對以負載型雜多藍為催化劑的乙酸與正丁醇的液相酯化反應進行了研究.考察了影響酯化反應的因素.結果表明：以負載型雜多藍為催化劑，酯化反應轉化率接近100 % ，收率可達98 . 9 % ，選擇性為98 . 9 % ，重復使用10次催化效果仍好.該催化劑還有反應條件溫和、反應時間短、對設備無腐蝕、無三廢排放等優點
  3. Iso 1597 - 1 plastics - unplasticized cellulose acetate - determination of acetic acid yield iso 1597 : 1994 ; german version en iso 1597 : 1999

    塑料.未增塑的乙酸纖維素.乙酸含量的測定
  4. Hydroxyquinol triacetate was prepared from p - benzoquinone by 1, 4 - addition reaction with acetic anhydride and then 6, 7 - dihydroxy coumarin was synthesized from it by hydrolyze and cyclization in concentrated sulfuric acid. then 6, 7 - dimethoxy coumarin was synthesized by methylating from 6, 7 - dihydroxy coumarin with an overall yield of 74. 4 %. the procedure was practical. its structure was confirmed by ir and 1hnmr

    對苯醌與乙酸酐經1 ， 4 -加成生成1 ， 2 ， 4 -苯三酚三乙酸酯，然後與蘋果酸反應經水解、環合反應得6 ， 7 -二羥基香豆素，再經甲基化得到6 ， 7 -二甲氧基香豆素，總收率為74 . 4 % ，整個過程反應條件溫和，操作方便，適合工業生產的要求，對產品結構進行了ir和1hnmr表徵。
  5. In contrast, when acetic acid is used, the yield of peracetic acid is only 35. 4 % under the same reaction conditions

    在相同條件下，如果用乙酸和75 . 5 %的過氧化氫反應，得到的過氧乙酸濃度僅為35 . 4 % 。
  6. The results show that the yield of terephthalic acid increases and the mass fraction of 4 - carboxybenzaldehyde decreases when the reflux temperature or the reaction pressure increases, or when the reflux ratio decreases, but that the combustion rate of p - xylene and acetic acid increase simultaneously

    計算表明：冷凝迴流溫度的升高、迴流比的降低和反應壓力的升高都導致反應溫度增加，雖然醋酸和對二甲苯的副反應消耗增加，但液相中對羧基苯甲醛的質量分數降低和反應收率增加。
  7. Determination of acetic acid yield of unplasticized cellulose acetate

    未增塑乙酸纖維素水解乙酸值的測定
  8. Plastics - unplasticized cellulose acetate - determination of acetic acid yield

    塑料.未增塑乙酸纖維素.乙酸率的測定
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